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Vol. V. Computer Processing Support by James L LARS Contract Report 112978 __ 1 Final Report Vol. V. Computer Processing Support by James L. Kast 'fl!ad Mv1rabiId 00&r NAMA spft~ortlD in the interest of early and wide dis. Principal Investigator sen!intion of Earth Resources Survey D. A. Landgrebe Program information and without liabiliY for any use made thereof." November 1978 (g79-10165) COMPUTER PROCESSING SUPPORT, N79"r21520 VOLUME5 Final Report 1 lDec. 1977-30 Nov. 1978 (Purdue Univ4 - 157 p-HC.A08/f0 onci4s A01 CSCL 09B G3/4,3 001!65 Prepared for National Aeronautics and Space Administration Johnson Space Center Earth Observation Division Houston, Texas 77058 Contract No. NAS9-15466 Technical Monitor: J. D. Erickson/SF3 Submitted by Laboratory for Applications of Remote Sensing Purdue University West Lafayette, Indiana 47907 * .2 bovernment Accession No. 3. Recipient's Cetalnq No 112978 1 4 Title and Subtitle 5. Report Date November 1978 Computer Processing Support 6. Performing Organization Code 7. Author(s) 8. Performing'Organization Report No James L. Kast 112978 10. Work Unit No. 9. Performing Organization Name and Address Laboratory for Applications of Remote Sensing Purdue University 11, Contract or Grant No West Lafayette, Indiana 47906 NAS9-15466 13. Type of Report and Period Covered 12. Sponsoring Agency Name and Address Final Report 12/1/77-11/30/78 J. D. Erickson/SF3 14. Sponsoin Ageoc Code NASA/Johnson Space Center -- Houston, Texas 77058 15. Supplementary Notes D. A. Landgrebe was LARS principal investigator. 16. Ab7rcct Over the past seven years ten agencies and institutions scattered throughout the central and eastern sections of the United States have accessed and utilized the data processing facilities and software located at Purdue University's Laboratory for Applications of Remote Sensing (LARS) for technology transfer and research purposes. This network has been evaluated as both a cost- and time-effective means for training people in the use of quantitative remote sensing and for making new developments available to a wide range of users. During the past year, in cooperation with Johnson Space Center (JSC), work was begun to tie together, coordinate and evaluate the work performed by the key research groups supporting JSC's Earth Observations Division by expanding the LARS remote terminal network to serve JSC's research community. This report summarizes this activity and reviews the results with respect to the potential benefits of a shared data processing environment: reduced costs through centralization, immediate access to research software and data, a common operating environment, joint access to a modular baseline analysis system, and the opportunity for a single program of computer aided training. 17. Key Words (Suggested by Author(s)) 18 Distribution Statement Remote sensing, remote terminal network, technology transfer, data processing network, research, cost-effective, communication, training. 19. Security CQassif. (of this report) f20. Security Classf (of this page) 21. No. of Pages 22 Price L Unclassified Unclassified "InwitI, by zhe N.triaIl I eclnii l hltormation Sevice, Springltield. Virginia 22161 NASA .J C i TABLE OF CONTENTS Page 1. Introduction .................. ...................... 1 1.1 Background ................... ............... ... 1 1.2 Project Objectives ................ ................ 3 1.3 Approach ................... ................... 4 1.4 Summary Schedule ............. ................... 5 2. Project Status .............. ........ ........... 7 2.1 Computer Capability................... ........ 7 System Support ...................... .. ...... 7 Remote Job Entry Station .......... ........ ..... 7 Acquire HASP Capability for the Data 100. ............ 7 Upgrade Terminal Communications Software. ............ 8 Recommend IBM 2780 Replacement . ............ .. 9 Provide Shared SR&T System to SR&T Sites .i........... 11 Support Additional JSC Keyboard Terminals. ........... 13 Establish JSC/LARS Tape Transfer Capabilities. ......... 14 Upgrade Batch Machine Support . .............. 16 Provide Accounting by User Group ...... ............ 17 Initiate LARSYSP1 IPL System . ............... 18 Transfer IPL System Responsibility to JSC. ........... 19 Create Timelimit per Interactive Session Software. ....... 19 Secure Disk Storage .... ...... .............. 20 Improve Efficiency of System Operation ............. 21 Consulting Support ..................... ..... 22 Establish Consulting Activities. ................ 22 Provide System Information . ................. 24 Implement SR&T News Capability . ................ 25 EOD LARSYS Prompting Exec. ................. 26 Make Statistical Packages Available. .............. 27 Exchange Information ........................ 28 Investigate Computer Conferencing System ............ 30 2.2 Data Base Management ............. .......... .... 31 Data Base Design and Implementation....... ....... .... 31 Design Historical Data Base.......... ......... ... 31 Select Media and Format of Digital Data Base .......... 32 Obtain Data Storage Space....................... 32 Receive Landsat Data Bases . ... ... ............ 32 Catalog Landsat Data in the Segment Catalog. .......... 34 Data Management Software ... ....... .............. 34 Implement Tape Referencing Capability. ............ 34 Implement Landsat Data Search Capability . ........... 35 Implement Data Base ......................... 35 3. Results ............. ............... .. ............ 37 3.1 Strategic Benefits of a Centralized SR&T Computer'System ........ 38 User Access ......... ................... ............ Centralization of Hardware . ......... 38 Centralization of Software ........ .................. 39 Information and Techniques Exchange. ................... 39 3.2 Tactical Reasons for Selecting Purdue as Host............. 41 Purdue's Experience ................................ ..41 Improved Techniques Exchange Capability ......... ...... ..41 Supplanting or Augmenting JSC On-Site Computations .......... 41 Begin.to Centralize SR&T Computing .......... .......41 Maintain Valuable Computational Capabilities .......... 43 Increase Access to Shared Resources. ............ ' Provide JSC Users an Interactive and Responsible Computational System... ............................... .43 3.3 Specific Accomplishments......... .......... ... 45 3.,4 Evaluation .......... ..... .......... ........ 47 4. Recommendations. ............. ... .... ... 9, 4.1 Coordinating SR&T Research Site Access, to the LARS Machine. 4,9 Remote Job -Entry Statiofi ................. 50 Interactive Color Device .................... .......... 50 Alternative Processing Technique Comparisons ..... .... 51 Programming Documentation and New Techniques fDelivery-Standards.. 51- Local Site Support Responsibilities ........................ 52 Establish Training Course. ........................... 52 Coordination of ERDS and SR&D Systems fDevelopment. ..........53: Establish-a,Research and Development Data Processing Network 'Steering Committee...... 53 4.2 Usage Project-ions .. ........................... 54 LIST OF FIGURES Page Figure 1. Computer Processing Support Detailed Schedule .... ..... 6 Figure 2. Monthly CPU Utilization Graph ......... .......... 42 LIST OF TABLES Table 1. Resource Allocation .. ..................... 24 iv LIST-OF APPENDICES Page Appendix A. System Loading Problems in a Virtual Machine Environment ................................................ 55 Appendix B. LARSYSP1 System Manual ...................................... 60 Appendix C. User Time Limit Option..................................... 114 Appendix D. Guide for Sensible Computer Usage .......................... 117 Appendix E. Fortran H Compiler ......................................... 125 Appendix F. LARS Consulting Team ...................................... 1 27 Appendix G. Software Systems Available on the LARS Computer ............ 129 Appendix H. LARS Computer System-Configuration ......................... 132 Appendix I. Agenda for Developing a Modular LARSYSP1 IPL System ........ 135 Appendix J. Segment Catalog ............................................ 137 Computer Processing Support* 1. INTRODUCTION 1.1 Background (Prior to CY79) The Laboratory for Applications of Remote Sensing at Purdue University (Purdue/LARS) has developed and maintained an Earth Resources Data Processing System which is used by-LARS personnel and remote users at .Johnson Space Center's Earth Observations Division (JSC/EOD) and other locations. The implementation of LARSYS on a'general purpose computer with time sharing and remote terminal capabilities increases the system's value for a large group of users. The resulting system potentially provides: * User access, at the users' locations, to remotely sensed data and processing capabilities, ­ * Centralization and sharing of expensive portions of processing hardware at a cost advantage, * Centralization of software allowing flexibility in software maintenance, addition, and updating at a cost advantage, over independent systems, and * Ease of training users and sharing experiences through standard data formats, terminology, and shared communication channels. The Earth Observations Division is planning to install hardware for an Earth Resources Data System (ERDS) in the early 1980's timeframe. The EROS system must be designed to support world-wide coverage for a multi­ crop food and fiber program while allowing the processing flexibility necessary for a research and development environment. In addition, the system must be conceptualized
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